There has been a Christian presence in historical Alyth. The first was founded in the sixth century by St Moluag and was one of the earliest places of Christian worship in this part of Perthshire. St Moluag, a contemporary of St Columba. Within the old churchyard can be seen part of the old sacristy of the Pre-reformation Church (dedicated to St Moluag of Lismore). The ruined walls of this old church, known locally as The Arches, stand in a graveyard in a prominent position at the top of the town, is all that remains of this first stone church. Robert the Bruce is said to have worshiped here in 1326.
Charter by King James III in 1488, the town was raised to the rank of Burgh of
Barony with the right to hold markets and fairs. This steady growth of the area
has meant the rerouting of several prominent features.
The Queich (or burn), with its several bridges, now runs through the centre of the town. The Old Market Cross erected in 1670 by the Earl of Airlie) was sited originally by the churchyard gate in Toutie Street, or the Causeway, as it was once known. It eventually proved an obstruction to traffic and had to be removed but was erected again in 1913, this time at the Market Square, by the Dowager Countess of Airlie.
At the top of the town is the Woolmarket, one of five drove roads. There was a custom house where the tron was kept, and dues paid, for "weying of wool" according to parliament of 1365.
The Den O'Alyth was part of the ancient Forest of Alyth. On 15th and 16th August 1326, King Robert I, known as Robert the Bruce reputedly hunted stag prior to the signing of charters relating to the Abbeys of Arbroath and Scone.